The estimated distribution size is reported to be a large range – approximately 1,610,000 km2. Although the global population has not been measured, the population trend appears to be stable. Because of this, the Manchurian bush warbler is evaluated as a least concern species.[3]
^Jeong, Young-Hun; Choi, Sung-Hwan; Banjade, Maniram; Jin, Seon-Deok; Park, Seon-Mi; Kunwar, Binod; Oh, Hong-Shik (2023-10-17). "Insights into the Behavioral Ecology and Niche Separation of Passeriformes through Camera-trap Analysis in the Halla Mountain Wetland of Jeju, Republic of Korea". doi:10.20944/preprints202310.1010.v1. {{cite web}}: Missing or empty |url= (help)